64814976 has 48 divisors (see below), whose sum is σ = 186515160. Its totient is φ = 21604608.

The previous prime is 64814963. The next prime is 64814983. The reversal of 64814976 is 67941846.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×64814976² = 8401962227761152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26980 + ... + 29283.

Almost surely, 2^64814976 is an apocalyptic number.

It is an amenable number.

64814976 is an abundant number, since it is smaller than the sum of its proper divisors (121700184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64814976 is a wasteful number, since it uses less digits than its factorization.

64814976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56283 (or 56268 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 64814976 is about 8050.7748695390. The cubic root of 64814976 is about 401.6907103445.

The spelling of 64814976 in words is "sixty-four million, eight hundred fourteen thousand, nine hundred seventy-six".